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Official data from INPI

PROCESSO DE FUSÃO CONTÍNUA DE SUCATA DE FERRO EM UM FORNO ELÉTRICO DE CORRENTE CONTÍNUA E FORNO A ARCO DE FUSÃO PARA EMPREGO DO PROCESSO

PublicadaInvention Patent

Application data

Number

PI8703945

Type

Invention Patent

Filing

07/31/1987

Publication

04/05/1988

Progress at the INPI

  1. Filing07/31/87
  2. Publication04/05/88
  3. Examination11/27/90
  4. Allowance12/14/93
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 04/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Clecim

FR

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Inventors

J. D. (pessoa física)

FR

R. J. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

86 11217 · 08/01/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/05/1988

RPI 911

Pedido de patente depositado

#2.1

10/20/1987

RPI 887

Carta-patente expirada

#21.1

Patente extinta em 31/07/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

06/28/1994

RPI 1230

Deferimento

#9.1

12/14/1993

RPI 1202

Solicitação de exame técnico

#4.1

11/27/1990

RPI 1043

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